'Whispering keyboards' could be next attack trend

Wednesday, 12 May 2004, 5:22 PM EST

Listen to this: Eavesdroppers can decipher what is typed by simply listening to the sound of a keystroke, according to a scientist at this week's IEEE Symposium of Security and Privacy in Oakland, Calif.

Each key on computer keyboards, telephones and even ATM machines makes a unique sound as each key is depressed and released, according to a paper entitled "Keyboard Acoustic Emanations" presented Monday by IBM research scientist Dmitri Asonov.

All that is needed is about $200 worth of microphones and sound processing and PC neural networking software.

By Niall McKay at SearchSecurity.

[ Read more ]

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